Migration of Stable Element Sr in Soil Columns

The methods and results of field tracer experiment in horizontal soil columns and laboratory-simulation experiment in vertical soil columns were presented. The results show that loess has stronger sorption ability for Sr, and longitudinal retardation coefficient at central axis is less than that at outer wall at laboratory simulation experiment in vertical columns. Retardation coefficient of Sr in horizontal columns in aquifer is slightly less than that of laboratory simulation experiment in vertical columns, which is possibly caused by the different densities of soil and flow velocity in columns.